/**
 * @file STL_SafeQueue.cpp
 * @author Derek Liu (yjkhtddx@sina.com)
 * @brief 安全队列
 * @version 0.0.1
 * @date 2020-07-16
 * 
 * @coryright Copyright Sci-Tech Laboratories (c) 2020
 * 
 */


// no anything ......